#include"mystdio.h"
#include<string.h>
int main(){
  MyFile *filep=MyFopen("./log.txt","a");
  if(!filep){
    printf("fopen error!\n");
    return 1;
  }
  char *msg="hello myfile!\n";
  MyFwrite(filep,msg,strlen(msg));
  MyFclose(filep);
  return 0;
}
